Sanitary flushing-tank.



J. L. GISH.

SANITARY FLUSHING TANK. APPLICATION FILED APR.1, 1915.

1,147,935. Patented July 27, 1915.

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COLUMBIA PLANOGIAPH C0" WASHINOIDN. D- C- i UNITEDSTATES rA'rnN'rcrises.

JoiiN INcoLN GISI-I, or sourn BEND, INDIA A} Y "ApplicationfiledApril 1,1915. sem nal-1357s.

1T0 whom it may concern i Be it known that I, JOHN LiNcoLN Grsn,

.ajcitifze'n of the United States, residing at South Bend,in thecountyof St. Joseph and State of Indiana,have invented a. new, and usefulSanitary Flushing-Tank, of which .the following is a specification.

The object arm present invention is to provide, tight flushingtanks,with an air and water supplying device, in the form and nature. of adouble" injector, whereby. the

tight flushing tank, is filled f and refilled,

withinthe shortest period oftime, and the tank, properly vented,,Withthe lowest pres sure of water, and whereby the tank isautomatically vented, in case extreme rarefaction'of air in tank. hasbeenfproduced, by

any cause,;and thereby insuring a proper flushing andreflushing, underall conditions. a Figure 1, is aperspective of my lmproved apparatus.'Eig..,j. 2,is a vertical section thereof, showingfsectional detail of atight flushing tankQprovided with regulated self closing valve, and ffurther provided, with an air and watersupplying device, in

the form of double injector. Fig. 3,

showsflone or. theateifiedj-ror of the double injeetorp. I i I Likeletters, and figures, :of reference, re-

fer; to like parts, inlthe several figures.

4, .is waterinlet,,by way oftheydouble injector. and B,),to, tank 5, isa dra1nage pipefleadinglfro n l-thedouble in ector (A end-B7) a ie nilsa y' bl charge way. 6, is an auxiliary air inlet topipe 5 7,,istheflush .pipe from tank 3. 8,

5a h nd e O en any s ita l Valve Plated at the outlet openingfrom. tank3. The

usual connections ,withthe service pipe and the dischargepipe are madeat 4:, and 7, respectively. ,1 In F ig. 2,3, is the tanlc; A, and B,

form the double injector. A, isthe water supply part, of the injector(A, and B.)

A,.;:1S.;--.arrangedawithin, the: air. su ly part I B, of the injector(A, and B.) A, iszpro vided with a water passage-way 9, 9, throughout.A, is provided with a self closing check valve 10, opening inwardly,said valve 10, is provided with its valve seat 11. B, is the air supplypart, of the double injector (A, and B.) B, is arranged on the outside,of water supply part A, of the injector (A, and B.) B, isprovided withan air passage-way 12, 12', throughout. B,

provided with its valve seat 1&.

SANITARY esume-TANK.

Specification of Letters Patent. Patented J l 2'? 1915.

j In. my prior Patent No. 1074711, an air and water supplying device inthe form and nature of an aspirator, is fully described. By reversing,the respective inlet openings R, and I, in Patent No. 1074-711, Iconvert the said aspirator, into the form and use of a a doubleinjector, which will, by actual tests, in ect the required amount ofair, into the tank 3, and fill the tank 3, with water,

fora proper flushing and reflushing, within the shortest period of time.My improvement therefore, provides tight flushing tanks, with an airandwater supplying device, using a double injector, instead of anaspirator, with the highest efficiency- In operationolie filling andrefilling of tank 3, with the required amount of air and water, with.the greatest eiiiciency, for a proper flushing and reflushing isaccomplished as. follows ;Water is allowed to flow into tank 3, throughthe water inlet 4. As the water, under pressure, flows past the checkvalve 10, raising said check valve 10,,to position of dotted line 10',Fig. 2, the

water is conducted onward and delivered, to

opening 9", within, the air supplying part B, ofthe double injector (A,and B.) As the water, under pressure, .is projected onward, from opening9", through part B, to

thereby injecting air, simultaneously, with the yinjecting ofwater,iinto tank 3. During the act, of causing air, to be injectedthrough the opening 12?, simultaneously, with the injecting of water,the valve 13, is opened, to position of dotted line 13, Fig. 2, by thefree inflow of air, necessary, for a proper flushing from tank 3, by thetime the tank 3, has received its required amount of water. As soon asthe air and water pressure, within the tank 3, equals the waterpressure, in the service pipe, the check valve 10, and the check valve13, will close automatically, as shown in Fig. 2, and the said checkvalves 10, and 13, will become Water sealed, and prevent the contents oftank 3, from escaping, by way, of its respective intake pipes. Also, inthis device, if the water pressure, through the double injector (A, and13,) is so low, as not to inject air, with the intake of water, then thedevice above described, will automatically vent tank 8, by way, of checkvalve 13, as soon as extreme rarefaction of air in tank 3, has beenproduced, by the discharging of the contents of the tank 3, therebysecuring a properly vented tank, for a proper flushing and reflushing,under all conditions.

WVhat I do claim as my invention and desire to secure byLetters Patentis,-

1. The combination with a tight flushing tank, an air supply pipeleading into said tank below the water level therein, and a water supplypipe arranged, in the air supply pipe, below the water level in thetank, said water supply pipe having an inwardly opening valve arrangedin its water passage, said air supply pipe having an inwardly openingvalve arrangedin its air passage, theouter end of said air passageserving as a drainage outlet, said drainage outlet provided with anauxiliary air inlet, said air inlet provided with a valve, arranged andhoused, to prevent the egress of water, through the said air inlet.

2. The coinbinationwith a tight flushing tank, an air supply pipeleading into said tank below'the water level therein, and a water supplypipe arranged in the air supply pipe below the water level in the tank,

, said water supply pipe having an inwardly opening valve arranged inits water passage, said air supply pipe having an inwardly opening valvearranged in its air passage, the outer end of said air passage servingas a drainage outlet.

3. The combination with a tight flushing tank, an air supplypipe leadinginto said tank below the water level therein, and a water supply pipearranged in the air supply pipe below the water level in the tank, saidair supply pipe having an inwardly opening valve arranged in its airpassage,

the outer end of said air passage serving as a drainage outlet.

4. The combination with a tight flushing tank, an air supply pipeleading into said tank below the water level therein, and a water supplypipe arrangedin the air supply pipe, said air supply pipe having aninwardly opening valve. arranged in its air supply pipe having aninwardly opening H valve arranged in its .air water level in the tank.

passage below 7. The combination with a tight flushing tank, an airsupply pipe leading into said tank below the water leveltherein, saidair supply pipe having an inwardly opening valve arranged, in its airpassage, below water level in the tank, the outer end of said airpassageserving as a drainage outlet. 8. The comblnation with atightflushi'n'g tank, an air supply pipe leading into said 230 tankbelow the water level thereinfsaid air supply pipe having'nn inwardlyopening valve arranged, in its Iairpassage, below water level in thetank, the outer end of said air passage serving "as a drainage outlet,said drainage outlet having an auxiliary air inlet, said air inlethaving a valve, arranged and housed, to prevent, the egress of water,through the said airinlet. 9. A. closed flushing tank having a baseprovided with an air'inlet' and a waterinlet, tubes connected withsaidinlets below the water level in the tank, a flush pipe connectedoutside .ot the tank to said base, the air supply pipe having aninwardlyopening valve arranged in its air passage belowthe water levelin the tank, the outer end of said airpassage serving" as a drainage'outlet, and the water supplypipefarranged in the air supply pipe belowthe waterle'vel in the tank.

In testimony whereof I haveisigned my name to this specification in thepresence of two subscribing witnesses] J OHN LINCOLN GISIL Witnesses: i

ANNA GIsrI',

ROBERT B. HILL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Ifatents,

' Washington,1).0. l

